Taxon Report
Ceanothus ophiochilus Boyd, Ross & ArnsethVail Lake ceanothus |
|
Taxon Summary
Ceanothus ophiochilus, commonly known as Vail Lake ceanothus, is a perennial evergreen shrub in the Rhamnaceae that is found only in California. It occurs within Chaparral (gabbroic, and pyroxenite-rich outcrops), growing at elevations from 580 to 1065 meters. Ceanothus ophiochilus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
|
Scientific Name: |
Ceanothus ophiochilus Boyd, Ross & Arnseth |
|
Common Name: |
Vail Lake ceanothus |
| Family: | Rhamnaceae |
| Element Code: | PDRHA041M0 |
| USDA Plants Symbol: | CEOP |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | perennial evergreen shrub |
| Blooming Period: Feb-Mar | Feb-Mar |
| Elevation: | 580-1065 (1905-3495) |
| General Habitats: | Chaparral |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G1 |
|
State Rank: |
S1 |
| State List: | CE |
| Fed List: | FT |
| Other Status: | SB_CalBG/RSABG |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 3 |
| Element Occurrence Ranks: | |
| Excellent (A) | 1 |
| Good (B) | 2 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Riverside (RIV) | |
| Quads: Name (Quad Code) | |
| Pechanga (3311741), Vail Lake (3311648) | |
Threat List Data from the CNDDB
| Threat List Total: | 5 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 3 | 100 % | |
| Road/trail construction/maint. | 3 | 100% |
| Hybridization | 2 | 66% |
| Non-native plant impacts | 2 | 66% |
| Development | 1 | 33% |
| Improper burning regime | 1 | 33% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 3 December 2025].